Perhaps you should try some spelling variations:
tinh tai » trinh tai, tinh thai, tinh hai
te sach » toc sach
dang ma » dang mau, dang mam, dang mat
hieu va » hieu qua
cac dac » cac dan, cac dai, cac bac
cao duc » dao duc, cao suc, giao duc
va tinh » may tinh
tai cua » thai cua, tai cuc, tri cua
cua tre » cua te, cuu tre, cua triet
y dang » ky dang, 2 dang, _ dang
ma hoi » mai hoi, xa hoi, ma hoa

You may be able to get more results by adjusting your search query.

• Performing a fuzzy search may retrieve terms with similar spellings: te sach y dang ma hoi. ((hieu va) or (lieu va)) ((cac dac) or (cao duc)) va tinh tai cua tre~.
• If you are trying to use Boolean operators, they must be ALL CAPS: te sach y dang ma hoi. ((hieu va) OR (lieu va)) ((cac dac) OR (cao duc)) va tinh tai cua tre.
• Adding a wildcard symbol may retrieve word variants: te sach y dang ma hoi. ((hieu va) or (lieu va)) ((cac dac) or (cao duc)) va tinh tai cua tre*.